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1.
Med Vet Entomol ; 33(4): 521-529, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31155766

RESUMO

Several species of Leishmania are responsible for leishmaniases in Thailand, although little is known about their transmission. Sergentomyia gemmea has been suspected several times to transmit Leishmania martiniquensis. Some captures carried out in Thailand and Lao People's Democratic Republic have emphasized the scarcity of Se. gemmea, comprising only 1% of the collected females. The sequencing of cytochrome B mtDNA of our specimens showed that our specimens are not grouped with other Se. gemmea previously deposited in GenBank. The latter are grouped with some Se. khawi and Se. hivernus that we processed in the present study. We suspect misidentifications and propose focusing on the most useful characters for identification of Se. gemmea based on the examination of type-specimens. The examination of the ascoids exhibiting anterior spurs is the most important one. However, we also describe Se. raynali n. sp. exhibiting comparable spurs but differing from Se. gemmea by its original cibarium. Finally, the vectorial role of Se. gemmea appears very questionable in the absence of new evidence.


Assuntos
Insetos Vetores/classificação , Psychodidae/classificação , Animais , Citocromos b/análise , DNA Mitocondrial/análise , Feminino , Proteínas de Insetos/análise , Insetos Vetores/anatomia & histologia , Insetos Vetores/genética , Laos , Masculino , Psychodidae/anatomia & histologia , Psychodidae/genética , Análise de Sequência de DNA , Tailândia
2.
Parasite ; 18(2): 127-40, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21678788

RESUMO

The Hippoboscidae or "louse-flies" is a family of pupiparous Diptera, which in their adult stage are ectoparasites of mammals and birds. This paper presents a comprehensive review of Malagasy Hippoboscidae. In total, amongst the 213 species of this family known worldwide, 14 have been reported in Madagascar, among which six are considered as endemic to the Malagasy region. In addition, data are presented from a collection of 17 Hippoboscidae obtained from seven species of forest-dwelling birds in the "Parc National de Midongy Befotaka", southeastern Madagascar, in 2003. The flies in this collection belong to three different species: Icosta malagasii (one), Ornithoica podicipis (ten) and Ornithoctona laticomis (six). The two former species were previously only known from single specimens in museum collections; the later species is distributed across much of the Afrotropical region and the records presented herein are the first for Madagascar. All the seven bird species are new hosts for hippoboscids. We present the first description of the male of Icosta malagasii. An illustrated dichotomous determination key of the 14 Malagasy species, based on morphological criteria only, is presented.


Assuntos
Doenças das Aves/parasitologia , Dípteros/classificação , Ectoparasitoses/veterinária , Mamíferos/parasitologia , Animais , Aves , Dípteros/anatomia & histologia , Ectoparasitoses/parasitologia , Feminino , Madagáscar , Masculino , Asas de Animais/anatomia & histologia
3.
J Vector Ecol ; 35(1): 13-9, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20618642

RESUMO

Phlebotomus papatasi (Scopoli, 1786) (Diptera: Psychodidae) is a major vector of Leishmania major (Kinetoplastida: Trypanosomatidae), a causative agent of zoonotic cutaneous leishmaniasis. Morphological characters of sand fly genitalia are key indicators for species identification. Various anomalies affecting male genitalia have been previously described. We take advantage of a large sand flies survey conducted in 32 stations in Central and Southern Morocco to systematically quantify the prevalence and spatial distribution of malformations affecting the genitalia of P. papatasi. Among 597 examined males, 122 were abnormal (20.4%). Malformations were widespread and largely concerned the number of spines in the lateral lobes and in the styles. Asymmetrical anomalies in lateral lobes were common. Correspondence analysis of our results highlighted the symmetrical anomalies observed in the lateral lobes, and abnormal styles of the male genitalia were found to be associated with environmental disturbances since they were prevalent in sewage dumps.


Assuntos
Genitália/anormalidades , Phlebotomus/crescimento & desenvolvimento , Animais , Masculino
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